PREDICTION OF PUNCH LOADS AND PRESSURES IN COLD EXTRUSION OF STEEL

Description

The components of the total extrusion load and the influence of process parameters are reviewed. The accuracy of theoretical predictions as well as the fluctuations in measured extrusion loads under production conditions are discussed. Several formulas for predicting the punch pressures in forward and backward extrusion are evaluated. The principles of a modeling method for estimating forming pressures are discussed.